Briquet and process of making same.



ld rtrrisin 'iraarist Patented July t, 1995.

l afititnrr llfillllllmll SPECIFICATION forming part of Letters Patent lilo. 793,795, dated July 4t, 1905.

Application filed May 25, 190

To 1/. III/mot fl; min/y (mil/(( 171):

lle it known that l, llowano F. ltlansu, a citizen ol' the United States of America, residing in thecityol ljos Angeles, in the county ol Los- Angeles, Stateol Ualilorl'iia, have in; vented a certain new and useful lmprtwei'nent in .llriu nets and .Processes o l lt'lakiug tl 1e Flame, ol which the following is a specification.

This invention relates to luel-ln'iuuets, and has for its object the provision ol a simple, cheap, and ellieient composition from which luel briuuets may be made, which, while thoroughly combustible and adapted to generate great heat, may be readily handled and which will noti'lisil'itegrate and which shall be aterproof, so that though drei'iched with or soaked in water the hriquets will not become water-l gge(l, but will at all times remain in perlect(.zoinlition torconsumption, presenting a lutrdened and glazed body.

The composition consists in powdered or line coal moistened by a solution ol gelatin and bichromate o'l potash, such solution being prelerably formed of sixteen parts of water to one part oi gelatin and one part of bichromate ot potash. The moistening may be to any preferred degree. The moistened prodnet is then placed in molds of the ordinary or any u-eferred construction and subjected to pressure in such molds, thereby pressing out any superalmndance .ol the solution. The pressed product is then dried either in a kiln or by simply subjecting the product to the atmosphere. ll desired, ninety-eight parts 0'! line coal or coaldust may be mixed with two parts of lime or gypsum and the mass thus formed. moistened with the gelatin and hi- (Illl'()lltill-0T1)OtllSl] s i lutiong but the preterable composition is secured without the addition of the lime or gypsun'l. it is ol the utmost importance that the gelatin and bichromate ol' potash shall he combined in a single solution before either of these elements are admixed with the powdered or line coal, as an entirely dillerent result is secured by the admixture of a solution oi combined gelatin and bieln-omate o'l potash in substantially the proportions named with the coal than is secured ill a solution of gelatin or a solution of t. Serial No. 209,749!

biclu'omate ol' potash is lirst mixed with the coal and then a solution of the other chemical added. This marked dill'ereniae i. apparent from the l'act that by thus makiuga combined solution ol gelatin and bichromate ol potash and then admixing the cmnbiued solution with the powdered coal :1 product is termed which readilyhardensaiul which product, although soaked in water al'ter such luu'dening. will notdisstdye in the vater. .lractical tests have been made by me of hri uets nmnul'actured by this Formula, and l have soaked briquets mauulaetured by this lorluula in water for a period of over six weeks without any disintegration or dissolving ol' the briuuets.

The liuished and dried briquets thus produced will he tound to be thoroughly waterprooli and to be hard and glazed throughout The briuuets will burn readik and substau tiallyall thereot will beconsumed. ll thelime or gypsum be added, the non-comhustil le portion will be substantially one per cent. ol' the ln-iquets.

The solution or l'nixtnre of substantially equal parts of gelatin and bichromate oi potash with water hardens so rapidly that it must be used directly after mixing -that is to say, as soon as the gelatin, li ichron1ate ol potash, and water are thoroughly mixed the mixture should he added to the finely-divided coal or coal and lime, or gypsl'un. The resultiug product when molded will harden or set very quickly without the use 01 heat.

The briquets thus produced are readily han died, as the same will posses." :,hard and thoroughly composite bodyuot liable to disintegrate aud which will not absorb moisture.

it has been Found that all coal contains a certain percentage of creosoteainl lime. By using a surplus ol hichromate ot potash it is found that a chel'nical reactiol'l takes place between these constituents, tluiasurplus orexcess o'l bicluonutte o'l' potash taking up the creosote. it is also Found that where lime is used or where there is lime present in the coal in material (piautities the lime in slaking would eat up the gelatin belore chemical action could take place between the bichromate of potash and gelatin. The excess ol lJi-- cbromate of potash, in combination with the lime, absorbs all creosote, and the surplus or excess of bichromate of potash also acts as a fluxing agentin the burning of the briquet. Bichromate of potash alone fuses at a Very much lower temperature than does bichromate of potash admixed with creosote and lime, and creosote and lime also fuse at a much lower temperature than when mixed with such bichromate ot' potash.

In the appended claims by the term solulution of gelatin and bichromate of potash I refer to and intend to specify a solution formed by the admixture of bichromate ot potash and gelatin, which solution is formed 1 before either the bichromate of potash or gelatin is mixed with the coal or lime, as by such Formationol a solution of bichromatc of potash and gelatin a ditlerent chemical etl'ect is produced than it the the bichromate ol potash or the gelatin were separately mixed with the coal.

What I claim is 1. A briquet composition comprising coal moistened by a solution ol gelatin and biehromate ol potash in substantially equal parts, substantially as set forth.

2. A briquet composition comprising line coal moistened. by a solution of substantially sixteen parts of water and one partoli' gelatin and one part of bichromate ol potash.

3. The method of making briquets which consists of moistening line coal with a solution of gelatin and bichromate of potash in subtantially equal proportions, and pressing and drying the product.

a. A briquet comprising coal and lime or gypsum thoroughly intermingled and moistened by a solution of gelatin and bichromate of potash in substantially equal parts. substantially as set forth.

5. A briquet composition comprising substantially ninety-eight parts of line coal and two parts of lime or gypsum thoroughly mixed and moistened by a solution of substantially sixteen parts of water and one part of gelatin and one part of bichromate of potash.

6. The method of making briquets which consists of mixing fine coal and lime or gypsum, moistening the mixture with a solution of gelatin and bichromate ol potash in substantially equal proportions, and pressingand drying the product.

T. The method of making briquets which consists in forming a mixture of substantially equal parts of gelatin and bichromate of potash with water, adding the mixture to line coal, and pressing and drying the product.

8. The method of making briquets which consists in Forming a mixture of substantially equal parts of gelatin and bichromate of potash with water, adding the mixture to line coal, or lime, or gypsum, and pressing and drying the product.

9. A briquet composition comprising line coal the particles of which are held together by a mixture 01 gelatin and bichroniate of potash in substantially equal ln'oportions.

10. A briquet composition comprising line coal and, a binding material consisting ot'gelatin and bichron'iate ol potash in substantially equal proportions.

in testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, at Los Angeles, in the county of Los Angeles and State ol Calilornia, this 20th day of irlay, 1904.

HOlVARl) E. MARSH. lVitnesses:

Fnnnuniox. S. LYON, \VI LLLUI l. \VAoY. 

